Hotel heiress Paris Hilton has vowed to curb her party lifestyle - because the celebrity social scene leaves her feeling "empty".Hilton was once a regular at star-studded events, but she insists she has lost interest in the party circuit since she started dating rocker Benji Madden earlier this year (08).And the 27-year-old is adamant that she has now left her wild lifestyle behind.She tells British magazine Heat, "I don't want to go to clubs now. I was caught up in a lifestyle that seemed fun at the time, but ultimately left me feeling very empty."And Hilton puts her reformed character down to her new love.She adds, "My boyfriend is my best friend. I stay home a lot and just enjoy my time with Benji. I'm a different person today."

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